Machine tool drive mechanism



July 6, 1965 K. A. RIEDEL ErAl.

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1. IN A MACHINE TOOL; A POWER SOURCE; A TRANSMISSION OPERABLY CONNECTED TO BE DRIVEN BY SAID POWER SOURCE, SAID TRANSMISSION HAVING A PLURALITY OF SHIFTABLE GEARS AND A PLURALITY OF NON-SHIFTABLE GEARS, SAID SHIFTABLE GEARS BEING ARRANGED TO BE INDIVIDUALLY SHIFTED FOR ESTABLISHING A PLURALITY OF TRANSMISSION OUTPUTS; A PLURALITY OF FLUID ACTUATED SHIFTING MECHANISMS EACH OF WHICH IS OPERABLY CONNECTED TO INDIVIDUAL SHIFTABLE GEAR OF SAID TRANSMISSION FOR ACTUATING SAID SHIFTABLE GEARS INTO A PLURALITY OF COMBINATIONS OF POSITIONS WITH EACH COMBINATION OF POSITION ESTABLISHING A DIFFERENT TRANSMISSION OUTPUT; A FLUID DISTRIBUTION VALVE CONDITIONABLE TO A PLURALITY OF CONDITIONS FOR EFFECTING A DISTRIBUTION OF FLUID PRESSURE TO SAID SHIFTER MECHANISMS FOR ACTUATING SAID SHIFTER MECHANISMS TO SELECTIVELY POSITION SAID SHIFTABLE GEARS FOR ESTABLISHING A SELECTED TRANSMISSION OUTPUT; A SOURCE OF FLUID PRESSURE OPERABLY CONNECTED TO SAID DISTRIBUTION VALVE; AN ELECTRIC MOTOR CONNECTED TO SAID FLUID DISTRIBUTIONB VALVE; AN ELECTRIC ABLE WHEN ENERGIZED TO ADJUST SAID VALVE TO ANY ONE OF A PLURALITY OF CONDITIONS FOR DIRECTING FLUID PRESSURE TO SAID SHIFTER MECHANISMS FOR ESTABLISHING DIFFERENT TRANSMISSION OUTPUTS; A PLURALITY OF COINCIDENCE SWITCHES CARRIED BY SAID DISTRIBUTION VALVE; A PLURALITY OF CAMS CARRIED BY SAID DISTRIBUTION VALVE AND OPERABLY CONNECTED TO BE ROTATED BY SAID ELECTRIC MOTOR WHEN SIAD MOTOR OPERATES TO CONDITION SAID DISTRIBUTION VALVE, SAID CAMS BEING DISPOSED IN POSITION SO THAT EACH OF SAID CAMS WHEN ROTATED IS OPERABLE TO ACTUATED AND DEACTUATE A SELECTED ONE OF SAID COINCIDENCE SWITCHES, SAID CAMS BEING ARRANGED FOR OPERATING SAID ASSOCIATED SWITCHES IN A PLURALITY OF CODED COMBINATIONS; A CONTROL MEMBER; A PLURALITY OF SELECTOR SWITCHES EQUAL IN NUMBER TO SAID COINCIDENCE SWITCHES AND CARRIED BY SAID CONTROL MEMBER; A TRANSMISSION OUTPUT SELECTOR OPERABLY CONNECTED TO SAID CONTROL MEMBER AND HAVING INDICIA INDICATING THE PLURALITY OF DIFFERENT TRANSMISSION OUTPUTS, SAID SELECTORS BEING OPERABLE WHEN SELECTIVELY POSITIONED AT A PARTICULAR TRANSMISSION OUTPUT SETTING TO ACTUATE ONE OR MORE OF SAID SELECTOR SWITCHES IN CODED COMBINATION; AN ELECTRICAL CIRCUIT OPERABLY CONNECTED TO SAID SELECTOR SWITCHES AND SAID COINCIDENCE SWITCHES, SAID CIRCUIT ALSO BEING CONNECTED IN SAID CIRCUIT TO MOTOR; AND MEANS OPERABLY CONNECTED IN SAID CIRCUIT TO EFFECT ENERGIZATION OF SAID MOTOR WHEREUPON SAID MOTOR OPERATES TO ADJUST SAID DISTRIBUTION VALVE AND TO ROTATE SAID CAMS FOR ACTUATING SAID COINCIDENCE SWITCHES AND WHEN SAID COINCIDENCE SWITCHES ARE ACTUATED IN THE SAME COMBINATION THAT SAID SELECTOR SWITCHES HAVE BEEN ACTUATED SAID ELECTRICAL CIRCUIT OPERATES TO DEENGIZE SAID MOTOR WHICH WILL THEN VALVE ADJUSTED SAID DISTRIBUTION VALVE SO THAT FLUID PRESSURE WILL BE DISTRIBUTED TO SAID FLUID ACTUATED SHIFTER MECHANISMS FOR ESTABLISHING A SELECTED TRANSMISSION OUTPUT WHICH COINCIDES WITH THE OUTPUT INDICATED BY SAID SELECTOR. 